Super basic Sublime Text 2 CSS formatter

format_css.py

from sublime import Region
from sublime_plugin import TextCommand

class LineIndenter:
  def __init__(self, view, lines):
    first = view.substr(lines[0])
    self.lines = lines
    self.base_indent = first[:len(first) - len(first.lstrip())]
    self.depth = 0

  def reindent_line(self, line):
    print("reindenting '%s'" % line)
    self.depth -= line.count("}")
    indent = self.base_indent + ("\t" * self.depth)
    self.depth += line.count("{")
    return indent + line.lstrip()

def format_colon(line):
  parts = line.split(":", 2)
  if len(parts) < 2:
    return line
  else:
    return parts[0].rstrip() + ": " + parts[1].lstrip()

class FormatCssCommand(TextCommand):
  def run(self, edit):
    regions = self.view.sel()
    if len(regions) == 1 and regions[0].empty():
      regions = [Region(0, self.view.size())]
    for region in regions:
      lines = self.view.lines(region)
      if len(lines) == 0:
        continue
      indenter = LineIndenter(self.view, lines)
      new_text = ""
      for line_region in lines:
        line = self.view.substr(line_region)
        line = indenter.reindent_line(line)
        line = format_colon(line)
        new_text += line + "\n"
      self.view.replace(edit, region, new_text)